#include<stdio.h>
#include<unistd.h>
int main()
{
  char *arglist[3];
    arglist[0]="ls";
    arglist[1]="-l";
   arglist[2]=0;
 printf("* * *about to exec ls -l \n" );
 execvp("ls",arglist);
  printf("*** ls is done");

}  
